Machine for scouring sheet metal.



PATENTED APR. 7, 1908.

W. H. CARPENTER. MAGHINE FOR SGOURING SHEET METAL.

APPLICATION FILED FEB. 5, 1907.

2 SHEETS-SHEET 1.

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g, M\ "W 5\ 5 mm 5 w 0 K 5 00 E d .6 .n T Y/ No. 884,313. PATENTED APR. 7,.190'8.

W. H. CARPENTER.

MACHINE FOR SGOURING SHEET METAL. APPLICATION FILED FEB. 5, 1907.

2 SHEETSSHEET 2.

UNITED STATES P A ENT OFFICE.

WILLIAM H. CARPENTER, OF BRISTOL, ONNECTICUT, ASSIGNOR TO BRISTOL BRASS COMPANY, OF BRISTOL, CONNEPTICUT, A CORPORATION.

MACHINE FOR SCOURING SHEET METAL.

Specification of Letters Patent.

Patented April 7, 1908.

Application filed February 5, 1907. Serial No. 355,885.

To all whom it may concern:

Be it known that 1, WILLIAM H. OAR-PEN- TER, a citizen of the United States, residing at Bristol, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in a Machine for Scouring Sheet Metal, of which the following is a specification.

My invention relates to machines for scouring sheet metal and the objects of my improvements are simplicity and economy in construction, and convenience and elIiciency in operation, particularly with reference to scouring and washing the metal and coiling itinto a roll at the delivery end of the machine.

In the accompanying drawing :Figure 1 is a perspective view of my machine, showing the delivery end and one side, the top cover and a part of the housing for the gears being removed. Fig. 2 is an enlarged side elevation of a portion of the delivery end of the machine, together with a sheet of metal passing therethrough and showing that side of the machine that is out of view in Fig. 1. Fig. 3 is a plan view of the machine on a smaller scale than Fig. 2, the housings for the gears .being removed. Fig. 4, is a 1011- gitudinal section of the same on line as m of Fig. 3.

A, A, designates the two sides of the subframe or legs which are connected together by suitable cross rods 5 and brace rods 6 in any ordinary manner. The two sides B, B, of the main frame are placed on the top of the sub-frame and secured thereto in any proper manner, as for example by the bolts 7.

At the front end of the machine, (the-right hand end as shown in Figs. 1 3 and 4,) a bracket 8 is secured to one of the sides B and a bracket arm 9 having a head 10 is secured to the said bracket with the bracket arm 9 standing arallel t0 the end of the frame and at some little distance therefrom.

Between the sides B, B, near their ends is a cross bed 11 having a T shaped groove 12 extending longitudinally through it, the said bed and groove forming suitable ways for the guard brackets 13 to slide upon longitudinally of the said cross bed, whereby the said guard brackets may be adjusted to any desired position on the cross bed and held in their adjusted position by means of ordinary bolts and nuts, as for example the bolts 14.

The guard bracket nearest the bracket 8 end and above the said brus has a guard plate 15 rigidly secured to its inner face, the said plate extending outwardly as far as the bracket arm 9 or a little beyond said arm. A similar guard plate 16 is pivoted by one corner as at 1 7, to the other guard bracket and extends outwardly in the same manner. This swinging or pivoted guard plate may be turned upwardly out of the way as indicated by broken lines in Fig. 4, or may be turned down into position for use as shown by full lines in Figs. 3 and 4. In front of, that is outside of the cross bed, there is a friction roller 18 loosely mounted in any suitable bearings and extending transversely to the machine in a position parallel to the bracket arm 9.

Adjacent to the cross bed there is a gang .the machine as indicated by the darts in Fig.

4. in Fig. 1, this gang of gears is covered by the housing 23. The several rollers forming the straightener are driven by means of a pulley 24,- mounted on the end of the central one of the lower rollers 19, and on that end which is opposite the gang of gears A roller brush 25, preferably a wire brush, is provided with a driving pulley 26 at one 1 is a presser roll 27 made vertically adjustable in any ordinary manner, as for example by means of adjusting screws 28 connected with the boxes in which the said roller is mounted, all in the ordinary manner of adjusting similar rolls. A second roller brush 25 with a presser roll 27 underneath it is adj'ustably mounted in the frame, nearer the delivery end of the machine than is the brush 25 and roll 27 The roller brush 25 is also provided with a-driving pulley 29. On the same side of the fram as t e pulleys 26 and 29, there is a swinging frame 30, having a pulley 31 mounted in its outer end and carrying a weight 32, whereby both pulleys 26 and 29 may be driven by one belt assing around the said three pulleys, the it le pulley 31 and weighted frame serving to keep the belt tautbn the'pulleys 26 and 29.

At another point in the frame still nearer the delivery end, a air of feed rollers are mounted, the up er eed roller 33 being adiustably mounter to move to and from the lower feed roller 34 by means of the adjusting screws 35 in the ordinary manner of adjusting similar rollers. The lower feed roller 34 is provided with a driving pulley 61, and the two feed rollers are connected by ordinary gears 62. At the delivery end of.the machine there is a set of three forming or coiling rollers, consisting of two lower rollers 36 and a centrally arranged upper roller 37. The roller 37 is vertically adjustable by means of sliding boxes 59 and ordinary adjusting screws 60. These rollers are driven by the driving shaft 38 having a pulley 39 and gear 40 at one end, and a gear 41 at the o kposite end for a pur ose hereinafter describe In Fig. 1 the pu ley 39 is removed in order'to show the gearing. The gear 40 engages and drives gears 42 on the ends of the lower rollers 36 as shown in Fig. 1, while one of the gears 42 drives the upper roller 37 by means of the two idle or intermediate gears 43, and

gear 44 fixed on the end ofthe said upper roller. vA little above the coiling rollers 36 37 there are two live rollers 45, that form a support for a coil or roll of metal. 0 These are so geared that their up er surface travels in the same direction as t e opposing surfaces of the coiling rollers, that is towards the delivery end of the machine. They are so driven by means of the gear 41 on the driving shaft 38, which gear 41 engages and drives the intermediate gear 46 for driving the gear 47 fixed on the end of one of the live rollers 45, while the same gear 41 on shaft 38 also engages anddrives another intermediate gear 48 for driving the gear 47 that is fixed on the end of the other one of the live rollers 45 asshown in Fig. 2. 2 are covered in Fig. 1 by the housing 63. Adjacent to the coil supporting rollers there is a curved apron or guard 49fixed on the frame and curving downwardly and outwardly towards the to of the coil supporting rollers. At this end of the machine there is a cross bar 50 upon which is mounted a air of guides 51 extending upwardly to an over the upper sideofthe coil supporting rollers. The lower endsof the guides 51 have heads or eyes 52 that are fitted tothe cross bar so that they may be ad'usted thereon to and from each other and eld in their adjusted position by means of the set screws 53.

Upper and lower skeleton or gridiron guides are arranged between the straightening rollers and the first roller brush, between the two roller brushes, between the second roller brush and the feed rollers and between the feed rollers and the coiling rollers. These guides are referably formed of bars or slats 54, ro s 55, and washers or spacing blocks 56, the slats. and blocks being perunder the rollers 45.

other endof the coil of metal. T then enters the end of the coiled s eet in The gears shown in Fig.

forated so that the slats and blocks may be supported on the rods with the blocks between the respective slats, as shown in Figs. 3, and 4. The ends of the upper and lower rods for the guides may be connected by means of the tie bars 57 and the ends of either the upper or lower rods may be connected with the sides of the frame in any proper and ordinary manner. A cross guard 58 is placed at the delivery end of the machine just under the outer one of the coil supporting or-live rollers 45, so as toprevent the end of a sheet of metal delivered from the coiling rollers from passing inwardly The driving pulle s for the straightener, the brushing rollers, t e feed rollers and the coiling rollers, are driven by separate belts. For use, the guides 15 and 16 at one end of the machine and the guides 51 at the opposite end are set the proper distance from each other according to the width of the sheetof metal to be scoured. They are also so set that the spaces between them at both ends of the machine are in substantially longitudinal alinement. The guide plate 16 is. turned up out of the way as indicated by broken lines in Fig. 4, and a coil or roll of sheet metal, fresh from the pickle, is slipped over the end of and upon the bracket arm 9, with one edge of themetal against the fixed guide plate 15. The other guide plate 16 is then turned down into the position shown by full lines in Fig. 4- so as to come closely to and opposite the other edge of the metal, or in other words, opposite the e o erator between the straightening rollers which not only flatten and straighten the metal, "but carry it along between the guide slats 54 so as to direct the end over the first brushingroller 25 and under the 'resser roller '27, for acting upon one side 0 the metal. Water may be distributed or a plied freel to the metal as it reaches the brushing ro ers and the purpose of making the guides in skeleton form is to facilitate the application of water thereto. The metal passes from the first brushing roller to the secondgoing under it and over the presser roll so as to have the two brushing rollers act u on the opposite sides of the metal. From the second brushing rollers the feed rollers take the metal-and draw it along with a tendency to pull on the metal and help to keepit in contact with the brushing rollers. From the feed rollers the metal asses between the forming and coiling ro ers which act to again coil the metal into a roll. The metal 65, Fig. 2, comes outfrom the coiling rollers,- passes u wardly between the two guides 51 and is 1'0 ,ed into a coil or roll 66 as shown, the said' roll '66. resting on the coil supporting rollers 45- whlch are so geared as to move in unison therewith. As the last end of the "sheet ing ofi or causing any inconvemence.

e I have shown the coiling and coil supporting rollers in a machine for scouring metal it is evident that their con'structionand action would be the same when laced at the delivery end of any machine or acting on sheet metal. By employing a straightener to precede the action of the roller brushes, the metal will beleveled up so that the brushes will act to the best advantage thereon. By means of the skeleton or gridiron guides, water can be freely applied} to the metal for cleaning or washing it as it passes through the machine.

1 claim asmy invention: .-.1. .A machine for scouring. sheet metal,

comprising the framewith abracket 8 secured to "one of the sides of the frame and projecting from one end thereof, acoil-su porting bracket arm 9 secured to the saidracket and extending laterally at a distance from the end of the'frame and parallel to the .said end, and a air of uide plates supported on the frame, t e'gui, e plate farthest from the bracket 8 being hinged to its support for being turned down upon-the bracket arm or turned up out of the way.

2. A machine for scouring sheet metal, com rising a set of straightening rollers,- witha ro er brush and presser .roller above the; same, a second roller brush and resser roller below the same, and a pair 0 feed rollersfor drawing the metal from the-roller brush. 3. A machine for scouring: sheet metal,

com rising a set of straightening rollers, with set of coi' rollers followin the feed riifi rs. g

a ro er brush for acting upon one side of they metal, a second roller brush in a difierent vertical plane, for 'actin u on the other side of-the metal, a pair of ca rollers for draw-' ing the metal from the roller brushes, and a the action of I 4. A machine for' scouring sheet metal, com rising a set 'of straightening rollers, with a rol er brush for acting upon one side of the metal, asecond roller brush for acting u on the other side of' the metal, a pairof eed rollers for drawing the metal from the roller brushes and u per and lower guides between the straightening rollers and first roller brush, betweenthe first. and second roller brushes and between the second rollen brush and the feed rollers. I

5. A machine for scouring sheet metal, comprising a roller brush for acting upon one side of the metal, a roller brush for acting upon the-other side of the metal, a presser device in connection with each roller brush for holdingathe metal against the said brush,

tandu per and lower guides of a skeleton iform- 'ed in front of the first roller brush v "and presser device and between the first and second roller brushes and presser devices.

6. A machine for scouring sheet metal, comprisin a setof straightening rollers, with roller brus es for acting on opposite sidesof the metal,'a pair of feed rollers for drawing the metal from the roller brushes and separate driving drums of the ulleys for the -straightening rollers, the rol er brushes and the feed rollers.

7. A'machine forgscouring sheet metal,

justably mounted for setting them at differ-' ,ent distances from each other, with the straightening rollers, roller brushes for acting :u on the opposite sides of the metal, a pair 0 feed rol ers following the action of the roller brushes, a set ofcoiling rollers and a pair of guides adjustably mounted at the deivery of the coiling rollers for setting the .said guides at different distances from each other corresponding to that .of the guide :plates at the other end of the machine.

' WILLIAM H. CARPENTER. 

